CN117606711A - Hydraulic test device for pipeline single-port sealing detection - Google Patents
Hydraulic test device for pipeline single-port sealing detection Download PDFInfo
- Publication number
- CN117606711A CN117606711A CN202311573663.8A CN202311573663A CN117606711A CN 117606711 A CN117606711 A CN 117606711A CN 202311573663 A CN202311573663 A CN 202311573663A CN 117606711 A CN117606711 A CN 117606711A
- Authority
- CN
- China
- Prior art keywords
- pipeline
- groove
- hydrostatic test
- inflatable rubber
- annular inflatable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 65
- 238000007789 sealing Methods 0.000 title claims abstract description 30
- 238000001514 detection method Methods 0.000 title claims abstract description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 46
- 230000002706 hydrostatic effect Effects 0.000 claims abstract description 32
- 230000001681 protective effect Effects 0.000 claims description 7
- 238000007689 inspection Methods 0.000 claims 3
- 238000012423 maintenance Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 2
- 239000008399 tap water Substances 0.000 description 2
- 235000020679 tap water Nutrition 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
- G01M3/2853—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipe joints or seals
Abstract
The invention discloses a hydraulic test device for detecting single-port sealing of a pipeline, which belongs to the technical field of single-port sealing detection of the pipeline, and comprises the following components: the inner liner tube, the outer side surface of the inner liner tube is axially provided with a first limit guard wing groove, a hydraulic test groove and a second limit guard wing groove which are arranged along the annular direction in sequence; the lining tube is provided with a water inlet, a water outlet and a pressure detection port corresponding to the water pressure test groove; during detection, the hydrostatic test groove is correspondingly arranged with a single interface of the pipeline; the 2 annular inflatable rubber tires are respectively arranged in the first limiting wing groove and the second limiting wing groove; the annular inflatable rubber tire is connected with an inflating valve used for inflating and deflating; and after the 2 annular inflatable rubber tires are inflated, a hydrostatic test sealing cavity is formed by the joint of the two annular inflatable rubber tires and the hydrostatic test groove and the pipeline. The invention can carry out water pressure sealing detection on a single joint of a pipeline with little water without filling the whole pipeline with water.
Description
Technical Field
The invention belongs to the technical field of pipeline single-interface seal detection, and particularly relates to a hydrostatic test device for pipeline single-interface seal detection.
Background
Because the pipeline connection mode of the socket joint type is convenient and quick, the pipeline connection mode is widely adopted in modern urban pipeline laying, and a full-stroke full-filling hydraulic test is required to be carried out on the pipeline after the pipeline is installed.
However, for large diameter pipes (DN 800 and above), this test requires a large amount of tap water and a long test period, and it is difficult to quickly and accurately find the leak interface position for a small amount of leak drop in the test.
Similarly, in the maintenance of large-caliber old pipelines, the leakage interfaces existing in the pipelines cannot be rapidly and accurately determined, so that the problem interfaces or the pipeline leakage positions cannot be rapidly maintained.
Disclosure of Invention
In order to solve the problems, the invention adopts the following technical scheme:
a hydrostatic test device for single-port seal detection of a pipeline, comprising:
the inner liner tube is axially and sequentially provided with a first limiting guard wing groove, a hydraulic test groove and a second limiting guard wing groove which are arranged along the circumferential direction on the outer side surface of the inner liner tube; the lining pipe is provided with a water inlet, a water outlet and a pressure detection port corresponding to the water pressure test groove; during detection, the hydrostatic test groove is correspondingly arranged with a single interface of the pipeline;
the 2 annular inflatable rubber tires are respectively arranged in the first limiting protective wing groove and the second limiting protective wing groove; the annular inflatable rubber tire is connected with an inflating valve used for inflating and deflating; and after the 2 annular inflatable rubber tires are inflated, a hydrostatic test sealing cavity is formed with the hydrostatic test groove and the single joint of the pipeline.
Further, 4 wing ring edges which are arranged along the annular direction are axially arranged on the outer side surface of the lining pipe, so that a first limiting wing groove, a hydrostatic test groove and a second limiting wing groove are formed.
Further, the 2 flap rims located on the outer side of the liner tube axis are aligned with the 2 end faces of the liner tube axis, respectively.
Further, the lining pipe and the wing ring edge are integrally formed.
Further, the radial dimension of the ring edge of the protective wing is smaller than or equal to the inner diameter dimension of the tested pipeline and the outer diameter dimension of the annular inflatable rubber tire.
Further, a pressure gauge is connected to the pressure detection port of the lining pipe; the water inlet and the water outlet are correspondingly arranged in the 180-degree direction of the center circumference of the lining pipe.
Further, the cross section of the annular inflatable rubber tire is of a rectangular structure, and the aspect ratio of the cross section is 0.5.
Further, a plurality of strip water stop lines are arranged on the inner sealing surface and the outer sealing surface of the annular inflatable rubber tire.
Further, the lining pipe is round and is formed by splicing 2 semicircular pipes with semicircular section structures.
The invention has the beneficial effects that:
compared with the prior art, the hydraulic test device for the sealing detection of the single pipeline interface provided by the invention has the advantages that the whole pipeline is not required to be filled with water, and the hydraulic sealing detection of the single pipeline interface can be performed with little water.
Meanwhile, in the maintenance of the old and old large-caliber pipelines, the pipeline interfaces with suspected problems can be rapidly leaked and detected, so that the symptomatic maintenance is adopted, and the water supply function of the pipelines is rapidly recovered.
Drawings
FIG. 1 is a schematic structural diagram of a liner tube in a hydrostatic test device for single-port seal detection of a pipeline;
FIG. 2 is a schematic structural view of an annular inflatable rubber tire in a hydrostatic test device for single-port seal detection of a pipeline;
FIG. 3 is a schematic illustration of a single port crimping of a single port seal testing device for a pipeline;
in the figure: 1. an inner liner tube; 2. a wing ring edge; 3. an annular inflatable rubber tire; 4. an inflating valve; 5. a pressure gauge; 6. a water inlet; 7. a water outlet; 8. a hydraulic test sealing cavity; 9. a pipe socket; 10. a pipe socket; 11. a rubber seal ring; 12. stripe water stop line; phi 1, the inner diameter size of the lining pipe; phi 2, radial dimension of the ring edge of the protective wing; phi 3, the inner diameter size of the tested pipeline.
Detailed Description
The invention provides a hydraulic test device for detecting single-port sealing of a pipeline. The following detailed description of the present invention is provided in connection with the accompanying drawings, so as to facilitate understanding and grasping thereof.
Example 1
Referring to fig. 1 to 3, a hydrostatic test apparatus for sealing and detecting a single port of a pipe, wherein the single port of the pipe is composed of a pipe socket 9, a pipe spigot 10 and a rubber seal 11, the apparatus comprising:
the inner liner tube 1, the outer side surface of the inner liner tube 1 is axially provided with a first limiting guard wing groove, a hydrostatic test groove and a second limiting guard wing groove which are arranged along the circumferential direction in sequence; the lining tube 1 is provided with a water inlet 6, a water outlet 7 and a pressure detection port corresponding to the water pressure test groove; during detection, the hydrostatic test groove is correspondingly arranged with a single interface of the pipeline;
the 2 annular inflatable rubber tires 3 and the 2 annular inflatable rubber tires 3 are respectively arranged in the first limiting wing groove and the second limiting wing groove; the annular inflatable rubber tyre 3 is connected with an inflating valve 4 for inflating and deflating; after the 2 annular inflatable rubber tires 3 are inflated, a hydrostatic test sealing cavity is formed by the joint of the two annular inflatable rubber tires and the hydrostatic test groove and the pipeline.
In the embodiment, a pressure gauge 5 is connected to a pressure detection port of the lining pipe 1 and is used for displaying the test water pressure; the water inlet 6 and the water outlet 7 are correspondingly arranged in the 180-degree direction of the center circumference of the lining tube 1.
Specifically, test water is pressed to an annular hydrostatic test seal cavity 8 of the pipeline interface through a water inlet 6, a water outlet 7 and a pressure gauge 5, and a single-port pressing test is performed.
In this embodiment, the outer side surface of the liner tube 1 is axially provided with 4 wing rims 2 disposed in the circumferential direction to form a first limit wing groove, a hydrostatic test groove and a second limit wing groove.
In the present embodiment, the 2 flap rims 2 located axially outside the liner tube 1 are aligned with the 2 end faces of the liner tube 1, respectively, in the axial direction.
In this embodiment, the liner tube 1 is integrally formed with the flap collar 2.
Of these, the lining pipe 1 is preferably a cylindrical lining metal pipe.
In the embodiment, the side expansion of the annular inflatable rubber tire 3 is limited, the expansion deformation safety of the annular inflatable rubber tire 3 in an inflated state is ensured, and the radial dimension phi 2 of the ring edge of the protective wing is smaller than or equal to the inner diameter dimension phi 3 of the tested pipeline and the outer diameter dimension of the annular inflatable rubber tire; the inner diameter dimension phi 1 of the liner tube can be selected according to the actual condition of the inner diameter dimension phi 3 of the tested pipeline.
In this embodiment, in order to improve the sealing performance of the annular inflatable rubber tire 3, the cross section of the annular inflatable rubber tire 3 is in a rectangular structure, and the aspect ratio of the cross section is 0.5; the inner sealing surface and the outer sealing surface of the annular inflatable rubber tyre 3 are provided with a plurality of strip water stop lines 12.
Specifically, the annular inflated rubber tire 3 is made of high-strength and high-elasticity rubber.
In another embodiment, in order to improve the test convenience of the device, especially for the pressure test of a pipeline with an extra large caliber, the lining pipe 1 is round and is formed by splicing semicircular pipes with 2 semicircular section structures.
The invention provides a hydraulic test device for pipeline single-joint sealing detection, which adopts an air expansion principle, and is characterized in that two independent annular inflatable rubber tires 3 with rectangular cross sections are arranged on a rigid lining pipe 1, and after the annular inflatable rubber tires 3 are inflated, a hydraulic test sealing cavity 8 is formed with a hydraulic test groove and a pipeline single joint; the liner tube 1 corresponding to the hydrostatic test sealing cavity 8 is provided with a water inlet 6 and a water outlet 7, two interfaces of the water inlet 6 and the water outlet 7 are arranged at an upper and lower 180-degree position, the water inlet 6 (lower interface) positioned at the lower side is used for water inflow during test, the water outlet 7 (upper interface) positioned at the upper side is used for water outflow, and the water outlet 7 at the upper side is also used as an exhaust port during water inflow.
The annular inflatable rubber tire 3 is made of high-elasticity rubber with increased wall thickness, and the inner sealing surface and the outer sealing surface of the annular inflatable rubber tire are provided with a plurality of stripe water stop line structures with independent sealing functions; the annular inflatable rubber tire 3 has higher pressure resistance under the protection of the radial metal surface of the lateral wing ring; the section height and width ratio of the annular inflatable rubber tire 3 is set to be 0.5, so that the test device can bear larger test water pressure, and when the annular inflatable rubber tire 3 is inflated with 0.7-1.0 MPa of compressed air, the test pressure of the sealing cavity of the hydraulic test sealing cavity reaches 1.6MPa, thereby completely meeting the test pressure requirement of a common city tap water supply pipeline.
The single-port pressurizing device adopting the sealing mode of the annular inflatable rubber tire made of rubber is convenient and quick to operate, high in test efficiency and low in cost, and solves a great difficulty in single-port pressurizing detection of a pipeline.
While the foregoing has been described in terms of embodiments of the present invention, it will be appreciated that the embodiments of the invention are not limited by the foregoing description, but rather, all embodiments of the invention may be modified in structure, method or function by one skilled in the art to incorporate the teachings of this invention, as expressed in terms of equivalent or equivalent embodiments, without departing from the scope of the invention.
Claims (9)
1. The utility model provides a pipeline single interface seals detects and uses hydrostatic test device which characterized in that includes:
the inner liner tube is axially and sequentially provided with a first limiting guard wing groove, a hydraulic test groove and a second limiting guard wing groove which are arranged along the circumferential direction on the outer side surface of the inner liner tube; the lining pipe is provided with a water inlet, a water outlet and a pressure detection port corresponding to the water pressure test groove; during detection, the hydrostatic test groove is correspondingly arranged with a single interface of the pipeline;
the 2 annular inflatable rubber tires are respectively arranged in the first limiting protective wing groove and the second limiting protective wing groove; the annular inflatable rubber tire is connected with an inflating valve used for inflating and deflating; and after the 2 annular inflatable rubber tires are inflated, a hydrostatic test sealing cavity is formed with the hydrostatic test groove and the single joint of the pipeline.
2. The hydrostatic test device for single-port seal inspection of a pipeline according to claim 1, wherein 4 annular wing rims are axially provided on an outer side surface of the inner liner tube to form a first limit wing groove, a hydrostatic test groove and a second limit wing groove.
3. The hydrostatic test unit for single port seal inspection of a pipe according to claim 2, wherein 2 of said flap rims located axially outward of said liner tube are aligned with 2 end faces of said liner tube in the axial direction, respectively.
4. The hydrostatic test unit for single-port seal inspection of a pipeline according to claim 2, wherein the liner tube is integrally formed with the flap rim.
5. The hydrostatic test device for single-port seal detection of a pipeline according to claim 2, wherein the radial dimension of the flap rim is equal to or smaller than the inner diameter dimension of the pipeline to be tested and the outer diameter dimension of the annular inflatable rubber tire.
6. The hydrostatic test device for single-port seal detection of a pipeline according to claim 1, wherein a pressure gauge is connected to a pressure detection port of the liner tube; the water inlet and the water outlet are correspondingly arranged in the 180-degree direction of the center circumference of the lining pipe.
7. The hydrostatic test device for single-port seal detection of a pipeline according to claim 1, wherein the annular inflatable rubber tire has a rectangular cross section and an aspect ratio of 0.5.
8. The hydrostatic test device for single-port seal detection of a pipeline according to claim 7, wherein a plurality of strip water stop lines are arranged on the inner sealing surface and the outer sealing surface of the annular inflatable rubber tire.
9. The hydrostatic test device for single-port seal detection of a pipeline according to claim 1, wherein the lining pipe is circular and is formed by assembling semicircular pipes with 2 semicircular section structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311573663.8A CN117606711A (en) | 2023-11-23 | 2023-11-23 | Hydraulic test device for pipeline single-port sealing detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311573663.8A CN117606711A (en) | 2023-11-23 | 2023-11-23 | Hydraulic test device for pipeline single-port sealing detection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117606711A true CN117606711A (en) | 2024-02-27 |
Family
ID=89949108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311573663.8A Pending CN117606711A (en) | 2023-11-23 | 2023-11-23 | Hydraulic test device for pipeline single-port sealing detection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117606711A (en) |
-
2023
- 2023-11-23 CN CN202311573663.8A patent/CN117606711A/en active Pending
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